After adding django-debug to App, getting “‘djdt’ is not a registered namespace”

You need to manually add ‘djdt’ routes to the end of urls.py (if you use ‘namespace’ in your apps, add below codes to ‘urls.py’ in your project):

if settings.DEBUG:
    import debug_toolbar

    urlpatterns += [
        url(r'^__debug__/', include(debug_toolbar.urls)),
    ]